Ill 



Fig. 407. Cenchrus echinatus Linn. 8p. PI. 1488. Cock 

 Spur. — A stout, erect or ascending perennial 3 to 10 dm. liigl). 

 with rather broad, Hat leaves and cylindrical, dense spikes 8 to 12 

 cm. long. Involucres (a) pilose or downy, with many spines above 

 and bristly near the base.— Dry soil, fields and waste places. 

 South Carolina to Florida and westward to Texas. [Mexico and 

 south ward. ] March- September . 



